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PixelFlow

Grayscale Image (Black & White)

Convert a colour photo to black and white in one click, kept lossless as a PNG.

Drop your image here

or click to browse

Processed locally — never uploaded

Drop a colour image and press Process. Luminance-based conversion keeps the look natural, and the black and white result downloads as a PNG.

How to use grayscale image (black & white)

  1. 1
    Add an image

    Drop any common image format; HEIC and WebP are supported via the converter tools if needed.

  2. 2
    Process

    Every pixel is converted to grey using the standard luminance formula.

  3. 3
    Download

    Save the black and white PNG losslessly.

About grayscale image (black & white)

Turning a colour photo into black and white suits classic portraits, printed materials and designs where colour would fight the layout. This tool applies a standard luminance conversion - the same weights professional tools use - and exports the result as a lossless PNG, entirely in your browser.

Frequently asked questions

Can I control the tone?

This tool keeps a neutral grey scale. For warm sepia or tinted looks, try the Duotone Filter.

Will the file be bigger or smaller?

PNG size depends on the image content; converting to black and white often compresses slightly better because there is less colour noise.

Related tools

Image Enhancer Adjust brightness, contrast, saturation, sharpness and warmth with a live before and after preview. Duotone Filter Recolor a photo into any two colours for a bold, editorial look in one click. Image Converter Convert between JPG, PNG, WebP, AVIF and BMP, optionally resizing in the same pass. Image to Pencil Sketch Convert a photo into a pencil drawing with the classic blurred-line sketch effect. Polaroid Frame Maker Wrap a photo in a classic instant-print border with an optional handwritten caption.

Private by design. Your files are processed on this device and are never uploaded to the 1xmobcas.com server. Use grayscale image (black & white) offline with total confidence.